WO2017164283A1 - Composition de revêtement antisalissure, film de revêtement antisalissure, substrat antisalissure et leur procédé de production - Google Patents

Composition de revêtement antisalissure, film de revêtement antisalissure, substrat antisalissure et leur procédé de production Download PDF

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Publication number
WO2017164283A1
WO2017164283A1 PCT/JP2017/011636 JP2017011636W WO2017164283A1 WO 2017164283 A1 WO2017164283 A1 WO 2017164283A1 JP 2017011636 W JP2017011636 W JP 2017011636W WO 2017164283 A1 WO2017164283 A1 WO 2017164283A1
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WO
WIPO (PCT)
Prior art keywords
antifouling
antifouling coating
mass
coating composition
coating film
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PCT/JP2017/011636
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English (en)
Japanese (ja)
Inventor
祥太郎 原田
淳内 筏井
順治 仁井本
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中国塗料株式会社
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Application filed by 中国塗料株式会社 filed Critical 中国塗料株式会社
Priority to JP2018507397A priority Critical patent/JP6689958B2/ja
Publication of WO2017164283A1 publication Critical patent/WO2017164283A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D143/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium, or a metal; Coating compositions based on derivatives of such polymers
    • C09D143/04—Homopolymers or copolymers of monomers containing silicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D193/00—Coating compositions based on natural resins; Coating compositions based on derivatives thereof
    • C09D193/04—Rosin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives

Definitions

  • the present invention relates to an antifouling coating composition, an antifouling coating formed using the same, an antifouling substrate having the coating on a substrate, and a method for producing the same.
  • Vessels such as oysters, mussels and barnacles, plants such as laver, and various aquatic organisms such as bacteria are likely to adhere to the surface of a substrate exposed to water for a long time, such as ships, underwater structures, and fish nets.
  • various problems occur.
  • the base material is a ship
  • the surface roughness increases from the waterline of the ship to the bottom of the ship, resulting in a decrease in the speed of the ship and an increase in fuel consumption.
  • the base material is a fish net such as an aquaculture net or a stationary net
  • the net is blocked by aquatic organisms, which may cause serious problems such as acid-deprived death of the aquaculture organisms and fishing organisms.
  • the base material is a seawater supply / drainage pipe of a thermal power plant or a nuclear power plant
  • the supply / drainage pipe of seawater (cooling water) is blocked or the flow velocity is reduced, which hinders the circulation system.
  • seawater supply / drainage pipe of a thermal power plant or a nuclear power plant the supply
  • Patent Document 1 contains a copolymer obtained by reacting a methacrylic acid organic silicon ester monomer such as triisopropylsilyl methacrylate with a methacrylic acid alkoxyalkyl ester such as methoxyethyl methacrylate at a predetermined mass ratio.
  • An antifouling paint composition is described.
  • Patent Document 2 includes A) one or more rosin compounds composed of rosin, a rosin derivative or a rosin metal salt, B) a specific organic silyl ester group-containing polymer, and C) an antifouling agent.
  • a coating composition contained as an essential component is described.
  • Patent Document 3 relates to a coating composition for preventing organisms from adhering to the surface of an object in the sea, and is specified by introducing a triorganosilyl group and an alkoxy group or an aryloxypolyethylene glycol group into the molecular side chain.
  • the coating composition characterized by containing the copolymer of this and an antifouling agent as an essential component is described.
  • Patent Document 4 discloses that 100 parts by weight of a monomer component, 55 to 75 parts by weight of triisopropylsilyl (meth) acrylate (a), 2 to 20 parts by weight of methoxyethyl acrylate (b), and other polymerizable monomers (c A copolymer comprising 43 to 5 parts by weight, and a coating composition comprising the copolymer and an antifouling agent.
  • JP 2005-82725 A Japanese Patent Laid-Open No. 10-30071 JP-A-7-102193 JP 2001-226440 A
  • An object of the present invention is to provide an antifouling coating composition in which the obtained antifouling coating film is excellent in antifouling property and long-term durability, and further excellent in long-term storage stability. Furthermore, an object of the present invention is to provide an antifouling coating film obtained from the antifouling coating composition, an antifouling substrate provided with the antifouling coating film, and a method for producing the same.
  • the inventors of the present invention have intensively studied in view of the above problems, and found that a silyl ester copolymer obtained by copolymerizing triisopropylsilyl methacrylate (TIPSSMA) and 2-methoxyethyl acrylate (MEA), copper pyrithione, and zinc oxide. And the present invention was completed by finding that the above-mentioned problems can be solved by an antifouling coating composition containing a rosin compound.
  • the present invention relates to the following [1] to [7].
  • [1] 45 to 75% by mass of the structural unit (a1) derived from triisopropylsilyl methacrylate, 15 to 35% by mass of the structural unit (a2) derived from 2-methoxyethyl acrylate, and other ethylenically unsaturated monomers
  • Antifouling paint containing silyl methacrylate copolymer (A), copper pyrithione (B), zinc oxide (C), and rosin compound (D) containing 0 to 35% by mass of structural unit (a3) derived from Composition.
  • inorganic copper compound (E), color pigment (F), extender pigment (G), pigment dispersant (H), plasticizer (I), sagging inhibitor (J), anti-settling agent (K) The antifouling paint composition according to [1] above, which contains at least one component selected from the group consisting of a dehydrating agent (L) and a solvent (M).
  • a ternary copolymer comprising the silyl methacrylate copolymer (A) comprising a structural unit derived from triisopropylsilyl methacrylate, a structural unit derived from 2-methoxyethyl acrylate, and a structural unit derived from methyl methacrylate.
  • a step of applying the antifouling coating composition according to any one of [1] to [3] to a substrate, or an antifouling coating composition according to any one of [1] to [3] A method for producing an antifouling base material, comprising the steps of impregnating the base material and drying the antifouling coating composition to form an antifouling coating film on the base material in this order.
  • an antifouling paint composition in which the obtained antifouling coating film is excellent in antifouling property and long-term durability, and further excellent in long-term storage stability. Furthermore, according to this invention, the antifouling coating film obtained from the said antifouling coating composition, the antifouling base material provided with this antifouling coating film, and the manufacturing method thereof can be provided.
  • the antifouling coating composition of the present invention comprises 45 to 75% by mass of the structural unit (a1) derived from triisopropylsilyl methacrylate, 15 to 35% by mass of the structural unit (a2) derived from 2-methoxyethyl acrylate, and Silyl methacrylate copolymer (A), copper pyrithione (B), zinc oxide (C), and rosin compound (D) containing 0 to 35% by mass of structural unit (a3) derived from other ethylenically unsaturated monomers ).
  • the antifouling coating film obtained is excellent in antifouling property and long-term durability, and also provided the antifouling coating composition excellent in long-term storage stability.
  • an antifouling coating film having excellent antifouling properties particularly at a draft line or at the water's edge can be obtained. That is, the antifouling property means that the adhesion of aquatic organisms is suppressed not only in water but also at a draft line or at the waterside even when immersed in seawater for a long time.
  • the long-term durability is excellent in the internal hydrolysis resistance and appearance characteristics of the coating film when immersed in water, particularly in seawater for a long time (the occurrence of cracks, cracks, etc. is suppressed for a long time.
  • it can be evaluated by crack resistance when immersed in seawater for a long time.
  • long-term storage stability means that the viscosity increase with time is small.
  • a hydrolyzable resin composed of a copolymer derived from TIPSMA has high hydrophobicity because TIPSSMA has a methyl group at the ⁇ -position, and has good water resistance and long-term physical properties. It has been found that since it is too high, the antifouling agent has a small amount of elution. In particular, the remarkable difference is the difference in antifouling property at the draft line (border) between the ship and seawater, and the antifouling paint containing a hydrolyzable resin composed of a copolymer derived from TIPSMA. In the composition, sufficient antifouling property was not obtained particularly in the draft line.
  • TIPSSMA triisopropylsilyl methacrylate
  • MEA 2-methoxyethyl acrylate
  • An antifouling paint composition comprising a silyl methacrylate copolymer having a constitutional unit derived from another ethylenically unsaturated monomer at a desired mass ratio as needed, and copper pyrithione, zinc oxide, and a rosin compound It is found that an antifouling coating film excellent in antifouling property and long-term durability can be obtained and an antifouling coating composition excellent in long-term storage stability can be obtained, and the present invention is completed. It came to.
  • the antifouling paint composition of the present invention contains a silyl methacrylate copolymer (A) for the purpose of improving the antifouling effect of the coating film, and the silyl methacrylate copolymer (A) A structural unit (a1) derived from isopropylsilyl methacrylate (hereinafter also referred to as structural unit (a1)), a structural unit (a2) derived from 2-methoxyethyl acrylate (hereinafter also referred to as structural unit (a2)), And a structural unit (a3) derived from another ethylenically unsaturated monomer (hereinafter also referred to as a structural unit (a3)).
  • the “other ethylenically unsaturated monomer” means a polymerizable monomer having an ethylenically unsaturated bond, excluding triisopropylsilyl methacrylate and 2-methoxyethyl acrylate.
  • (meth) acrylate means “acrylate or methacrylate”.
  • the “structural unit derived from X” is, for example, a structural unit represented by the following formula (2) when X is a compound represented by the following formula (1).
  • a 1 to A 4 are arbitrary substituents.
  • component Z in the antifouling coating composition of the present invention means that the antifouling coating composition of the present invention is prepared by blending component Z, for example, component Z Includes a case where the compound is different from the compounded component Z by reacting with other components or forming a salt in the antifouling coating composition.
  • the structural unit (a1) is a structural unit derived from triisopropylsilyl methacrylate (i).
  • the silyl methacrylate copolymer (A) is a structural unit ( a1) is contained in an amount of 45 to 75% by mass, preferably 50 to 70% by mass. If the content of the structural unit (a1) is less than 45% by mass or exceeds 75% by mass, sufficient long-term durability and antifouling properties cannot be obtained.
  • the content of the structural unit (a1) derived from triisopropylsilyl methacrylate should be approximated by the charging ratio (mass%) of triisopropylsilyl methacrylate in all monomers constituting the silyl methacrylate copolymer (A). The same applies to other structural units.
  • the structural unit (a2) is a structural unit derived from 2-methoxyethyl acrylate (ii).
  • the silyl methacrylate copolymer (A) contains 15 to 35% by mass of the structural unit (a2) derived from 2-methoxyethyl acrylate, Contains 20 to 30% by mass.
  • the other ethylenically unsaturated monomer (iii) has an ethylenically unsaturated group.
  • the group having an ethylenically unsaturated group include a vinyl group and a (meth) acryloyl group.
  • ethylenically unsaturated monomers are not particularly limited as long as they are ethylenically unsaturated monomers other than triisopropylsilyl methacrylate and 2-methoxyethyl acrylate, and esters having an ethylenically unsaturated bond (unsaturated esters), And carboxylic acids having an ethylenically unsaturated bond (unsaturated carboxylic acids) are preferred.
  • the other ethylenic monomer is the above compound, good compatibility with triisopropylsilyl methacrylate and 2-methoxyethyl acrylate is obtained, and the reactivity is similar to that of triisopropylsilyl methacrylate and 2-methoxyethyl acrylate. This is preferable.
  • ethylenically unsaturated monomers include (meth) acrylic acid esters, unsaturated monocarboxylic acids, unsaturated dicarboxylic acids, and their half esters (monoesters) and diesters, vinyl esters; Examples include (meth) acrylates; organosiloxane group-containing (meth) acrylates. Moreover, styrenes are illustrated as monomers other than unsaturated esters and unsaturated carboxylic acids.
  • ethylenically unsaturated monomers include (meth) acrylic acid methyl ester, (meth) acrylic acid ethyl ester, (meth) acrylic acid butyl ester, (meth) acrylic acid 2-ethylhexyl ester, (meth) Acrylic acid lauryl ester, (meth) acrylic acid tridecyl ester, (meth) acrylic acid stearyl ester, (meth) acrylic acid allyl ester, (meth) acrylic acid cyclohexyl ester, (meth) acrylic acid benzyl ester, (meth) acrylic Acid isobornyl ester, (meth) acrylic acid glycidyl ester, (meth) acrylic acid tetrahydrofurfuryl ester, (meth) acrylic acid hydroxyethyl ester, (meth) acrylic acid hydroxypropyl ester, (meth) acrylic acid hydro (Meth) acrylic acid esters such as sibutyl ester, (meth) acrylic
  • Monocarboxylic acids Monocarboxylic acids; dicarboxylic acids such as itaconic acid, maleic acid, and succinic acid; and half esters (monoesters) and diesters thereof; styrenes such as styrene and ⁇ -methylstyrene; vinyl esters such as vinyl acetate and vinyl propionate. Etc., and these may be used singly or in combination of two or more.
  • the silyl methacrylate copolymer (A) contains 0 to 35% by mass, preferably 5 to 30% by mass, of the structural unit (a3) derived from other ethylenically unsaturated monomers.
  • the structural unit (a3) derived from other ethylenically unsaturated monomers has 4 or more carbon atoms from the viewpoint of improving the water resistance balance of the coating film and improving the antifouling property at the long-term waterfront. It is preferable not to have the linear alkyl group.
  • the silyl methacrylate copolymer (A) preferably contains a structural unit derived from an ethylenically unsaturated monomer selected from the group consisting of methyl methacrylate, ethyl methacrylate, and propyl methacrylate.
  • the silyl methacrylate copolymer (A) is particularly preferably a ternary copolymer composed of triisopropylsilyl methacrylate, 2-methoxyethyl acrylate, and methyl methacrylate.
  • the content of the silyl methacrylate copolymer (A) in the antifouling coating composition is the amount of non-volatile content of the antifouling coating composition from the viewpoint of ensuring antifouling properties, long-term storage stability, and long-term durability. Is 100% by mass, preferably 5 to 50% by mass, more preferably 5 to 30% by mass.
  • the weight average molecular weight (Mw) of the silyl methacrylate copolymer (A) is preferably 5,000 to 100,000, more preferably 10,000 to 60,000.
  • the antifouling coating film formed from the antifouling coating composition containing the silyl methacrylate copolymer (A) having a weight average molecular weight within the above range has good hydrolyzability and further improves the static resistance. In addition, it can exhibit better long-term durability.
  • the weight average molecular weight is a value determined by a gel permeation chromatography (GPC) method and determined using a standard polystyrene calibration curve.
  • the silyl methacrylate copolymer (A) is obtained by copolymerizing triisopropylsilyl methacrylate (i), 2-methoxyethyl acrylate (ii), and another ethylenically unsaturated monomer (iii) by a known polymerization method. Can be prepared.
  • the polymerization method include solution polymerization, bulk polymerization, semi-batch polymerization, suspension polymerization, coordination polymerization, living polymerization, or radical or ionic polymerization in emulsion polymerization.
  • the monomers (i) to (iii) are preferably solution polymerized using a commonly used organic solvent such as n-butyl acetate.
  • catalysts can be widely used.
  • 2,2′-azobis (2-methylbutyrate) is used.
  • Nitrile), 2,2'-azobis (2,4-dimethylvaleronitrile), 2,2'-azobis-isobutyronitrile (AIBN), benzoyl peroxide, t-butylperoxy-2- Peroxides such as ethyl hexanoate, t-butyl peroxybenzoate, and t-butyl peroxy octoate are listed.
  • the antifouling coating composition of the present invention further improves the antifouling property of the antifouling coating film formed from the composition, and in particular, effectively exhibits antifouling performance against plant marine organisms.
  • (B) is contained.
  • the content of copper pyrithione (B) is preferably 0.00 with respect to 100 parts by mass of the silyl methacrylate copolymer (A). The amount is from 01 to 500 parts by mass, more preferably from 0.01 to 300 parts by mass.
  • the content of copper pyrithione (B) is preferably 0.1 to 90% by mass, more preferably 0.5 to 80% by mass. is there.
  • the antifouling coating composition of the present invention exhibits an appropriate strength, coating scouring property (coating depletion), and renewability for the antifouling coating formed from the composition, and effectively provides antifouling performance.
  • it contains zinc oxide (C).
  • the content of zinc oxide (C) is preferably 100 parts by mass of the silyl methacrylate copolymer (A). The amount is 0.1 to 1000 parts by mass, more preferably 0.5 to 500 parts by mass. Further, assuming that the nonvolatile content of the antifouling coating composition is 100% by mass, the content of zinc oxide (C) is preferably 0.1 to 80% by mass, more preferably 0.5 to 70% by mass. is there.
  • Rosin compound (D)> The antifouling paint composition of the present invention promotes elution of the antifouling agent from the antifouling coating film formed from the composition, and improves the antifouling property (especially antifouling property at the water's edge).
  • rosin compound (D) examples include rosins such as gum rosin, wood rosin and tall oil rosin, and rosin derivatives such as hydrogenated rosin and disproportionated rosin.
  • the silyl methacrylate copolymer content of (A) and (W A), the content of the rosin compound (D) (W D) ratio of (W A / W D ) is preferably 99.9 / 0.1 to 30/70 on a mass basis, more preferably 95/5 to 35/65, and still more preferably 90/10 to 40/60.
  • the antifouling coating film formed from the antifouling coating composition has an effect of improving the scouring property (coating depletion), and the antifouling property (especially at the waterfront). Antifouling property) can be improved.
  • the antifouling coating composition of the present invention further comprises an inorganic copper compound (E), a color pigment (F), an extender pigment (G), a pigment dispersant (H), a plasticizer (I), a sagging inhibitor (J), You may contain the at least 1 sort (s) of additive selected from the group which consists of an antisettling agent (K), a dehydrating agent (L), and a solvent (M).
  • E inorganic copper compound
  • F color pigment
  • G extender pigment
  • H pigment dispersant
  • I plasticizer
  • J a sagging inhibitor
  • You may contain the at least 1 sort (s) of additive selected from the group which consists of an antisettling agent (K), a dehydrating agent (L), and a solvent (M).
  • K antisettling agent
  • L dehydrating agent
  • M solvent
  • the antifouling coating composition of the present invention may further contain an inorganic copper compound (E) in order to further improve the antifouling property of the antifouling coating film formed from the antifouling coating composition.
  • the inorganic copper compound include powdered copper (copper powder), cuprous oxide, copper thiocyanate (also known as rhodan copper), cupronickel, and the like.
  • cuprous oxide is preferred as the inorganic copper compound (E).
  • the average particle size of cuprous oxide is preferably less than 4.5 ⁇ m, more preferably 4 ⁇ m or less, and even more preferably 3.5 ⁇ m or less.
  • the average particle diameter is measured by a laser diffraction scattering method using SALD-2200 (manufactured by Shimadzu Corporation). Specifically, a few drops of HMPNa (sodium hexametaphosphate) 0.2% by weight and neutral detergent are added to the sample disperser of SALD-2200, and ultrasonic waves are activated, and the pump speed scale is set to 7 for circulation. . Take about 100 mg of cuprous oxide in a mortar and add a few drops of neutral detergent to lightly disperse to loosen secondary agglomeration. Water is added to the sample dispersed in the mortar so that no bubbles are formed, and the sample is poured into the sample disperser. After circulating and dispersing for 10 minutes with a disperser, the particle size distribution is measured. The refractive index when calculating the particle size distribution is “2.70-0.20i”, and the median system in the particle size distribution is the average particle size.
  • the content of the inorganic copper compound (E) is preferably 0 with respect to 100 parts by mass of the silyl methacrylate copolymer (A) from the viewpoint of long-term antifouling properties. 0.01 to 2,500 parts by mass, more preferably 0.1 to 1,000 parts by mass. Further, when the nonvolatile content of the antifouling coating composition is 100% by mass, the content of the inorganic copper compound (E) is preferably 0.1 to 90% by mass, more preferably 0.5 to 80% by mass. It is.
  • the antifouling coating composition of the present invention contains a color pigment (F) in order to adjust the color tone of the antifouling coating film formed from the antifouling coating composition or to impart an arbitrary color tone. Also good.
  • the color pigment (F) include various known organic or inorganic color pigments. Examples of organic coloring pigments include carbon black, naphthol red, and phthalocyanine blue. Examples of the inorganic coloring pigment include bengara, barite powder, titanium white, and yellow iron oxide.
  • the antifouling coating composition of the present invention may contain a colorant excluding the color pigment (F) such as a dye together with the color pigment (F) or instead of the color pigment (F).
  • the content of the color pigment (F) is such that the antifouling coating film formed from the antifouling coating composition is colored, concealed, exposed to discoloration, antifouling, coated.
  • the amount is preferably 0.01 to 100 parts by weight, more preferably 0.01 to 10 parts by weight with respect to 100 parts by weight of the silyl methacrylate copolymer (A). Part.
  • the content of the color pigment (F) is preferably 0.01 to 50% by mass, more preferably 0.1 to 30% by mass. is there.
  • the antifouling coating composition of the present invention contains an extender pigment (G) for the purpose of improving coating film properties such as crack resistance of the antifouling coating film formed from the antifouling coating composition. Also good.
  • extender pigments (G) include talc, silica (diatomaceous earth, acid clay, etc.), mica, clay, potassium feldspar, calcium carbonate, kaolin, alumina white, white carbon, aluminum hydroxide, magnesium carbonate, barium carbonate, sulfuric acid. Examples include barium and zinc sulfide. Among these, talc, silica, mica, clay, calcium carbonate, kaolin, barium sulfate, and potassium feldspar are preferable.
  • the content of the extender pigment (G) is the water resistance (mechanical properties), antifouling property, and coating film of the antifouling coating film formed from the antifouling coating composition.
  • the amount is preferably 0.1 to 500 parts by mass, more preferably 50 to 300 parts by mass with respect to 100 parts by mass of the silyl methacrylate copolymer (A).
  • the content of the extender pigment (G) is preferably 0.1 to 80% by mass, more preferably 0.5 to 70% by mass. is there.
  • Pigment dispersant (H) When the antifouling coating composition of the present invention contains a color pigment (F) or an extender pigment (G), from the viewpoint of improving the dispersibility of the color pigment (F) or the extender pigment (G), a pigment dispersant (H ) May be contained.
  • the pigment dispersant (H) include various known organic or inorganic pigment dispersants.
  • the pigment dispersant include aliphatic amines or organic acids (for example, “Duomine TDO” (manufactured by LION Co., Ltd.), “Disperbyk101” (manufactured by BYK Co., Ltd.)).
  • the content of the pigment dispersant (H) is from the viewpoint of reducing the paint viscosity of the antifouling paint composition and improving the anti-fouling effect of the antifouling coating film.
  • the amount is preferably 0.01 to 100 parts by mass, more preferably 0.01 to 50 parts by mass with respect to 100 parts by mass of the silyl methacrylate copolymer (A).
  • the content of the pigment dispersant (H) is preferably 0.01 to 20% by mass, more preferably 0.1 to 10% by mass. It is.
  • the antifouling coating composition of the present invention preferably contains a plasticizer (I) in order to improve the crack resistance of the resulting antifouling coating film.
  • the plasticizer (I) include chlorinated paraffin (chlorinated paraffin), petroleum resins, ketone resins, TCP (tricresyl phosphate), polyvinyl ethyl ether, dialkyl phthalate, and the like. From the viewpoint of improving the water resistance (mechanical properties) and hydrolyzability (consumability) of the antifouling coating film formed from the antifouling coating composition, these plasticizers (I) Of these, chlorinated paraffin (chlorinated paraffin), petroleum resins, and ketone resins are preferable.
  • a plasticizer (I) may be used individually by 1 type, and may use 2 or more types together.
  • chlorinated paraffins include “Toyoparax 150” and “Toyoparax A-70” (both manufactured by Tosoh Corporation).
  • Examples of petroleum resins include C5, C9, styrene, dichloropentadiene, and hydrogenated products thereof.
  • Specific examples of petroleum resins include “Quinton 1500” and “Quinton 1700” (both manufactured by Nippon Zeon Co., Ltd.).
  • the content of the plasticizer (I) is such that the antifouling coating film formed from the antifouling coating composition is hydrolyzable (consumable), antifouling, and coated.
  • the amount is preferably 0.1 to 300 parts by weight, more preferably 0.1 to 200 parts by weight with respect to 100 parts by weight of the silyl methacrylate copolymer (A). Part, more preferably 0.1 to 150 parts by weight.
  • the content of the plasticizer (I) is preferably 0.1 to 80% by mass, more preferably 0.5 to 70% by mass. is there.
  • the antifouling paint composition of the present invention has an anti-sagging agent (J) (also referred to as a flow-preventing agent) from the viewpoint of reducing the occurrence of sagging due to the coating composition when the antifouling coating composition is applied to a substrate. May be included).
  • the anti-sagging agent (J) include amide wax, hydrogenated castor oil wax, mixtures thereof, synthetic fine powder silica (Aerosil (registered trademark), etc.), among these, amide wax or synthetic fine powder silica. Preferably there is.
  • the storage stability of the antifouling coating composition is improved, and after the antifouling coating is formed, the same kind of coating is applied on the antifouling coating.
  • a coating film (top coating film) made of a composition (antifouling coating composition) or a different coating composition is formed, adhesion between the antifouling coating film and the top coating film (interlayer adhesion, repeated coating) ) Is preferable because it is possible to prevent a decrease in the property.
  • the content of the anti-sagging agent (J) is preferably 0.1 to 100 parts by mass, more preferably 100 parts by mass with respect to 100 parts by mass of the silyl methacrylate copolymer (A). 0.1 to 50 parts by mass. Further, when the nonvolatile content of the antifouling coating composition is 100% by mass, the content of the anti-sagging agent (J) is preferably 0.1 to 50% by mass, more preferably 0.5 to 30% by mass. It is.
  • the antifouling coating composition of the present invention may contain an anti-settling agent (K) from the viewpoint of preventing the generation of precipitates in the coating composition during storage and improving the stirring ability.
  • anti-settling agent (K) examples include stearates of Al, Ca, or Zn, polyethylene wax, oxidized polyethylene wax, etc. Among them, oxidized polyethylene wax is preferable. As a commercially available product of oxidized polyethylene wax, “DISPARON 4200-20X” (manufactured by Enomoto Kasei Co., Ltd.) can be mentioned.
  • the content of the anti-settling agent (K) is preferably 0.1 to 100 parts by mass, more preferably 100 parts by mass with respect to 100 parts by mass of the silyl methacrylate copolymer (A). 0.1 to 50 parts by mass. Further, when the nonvolatile content of the antifouling coating composition is 100% by mass, the content of the anti-settling agent (K) is preferably 0.1 to 50% by mass, more preferably 0.5 to 30% by mass. It is.
  • the antifouling coating composition of the present invention has excellent storage stability because it contains the silyl methacrylate copolymer (A) having good storage stability, but if necessary, a dehydrating agent (L). It becomes possible to obtain further excellent long-term storage stability by adding.
  • the dehydrating agent (L) include inorganic dehydrating agents and organic dehydrating agents.
  • the inorganic dehydrating agent synthetic zeolite, anhydrous gypsum and hemihydrate gypsum are preferable.
  • the organic dehydrating agent include tetramethoxysilane, tetraethoxysilane, tetrabutoxysilane, tetraphenoxysilane, methyltriethoxysilane, dimethyldiethoxysilane, and trimethylethoxysilane, and polyalkoxy that is a condensate thereof.
  • Silanes and orthoformate alkyl esters such as methyl orthoformate and ethyl orthoformate are preferred.
  • the content of the dehydrating agent (L) is preferably 0.1 to 50 parts by mass with respect to 100 parts by mass of the silyl methacrylate copolymer (A). Further, when the nonvolatile content of the antifouling coating composition is 100% by mass, it is preferably 0.01 to 30% by mass, more preferably 0.1 to 20% by mass.
  • the antifouling coating composition of the present invention is water or an organic solvent as necessary.
  • a solvent (M) such as The solvent (M) may be the solvent used when preparing the silyl methacrylate copolymer (A), and when mixing the copolymer (A) and other components as necessary, A solvent added separately may be used.
  • organic solvents examples include aromatic organic solvents such as xylene, toluene, and ethylbenzene; ketones such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; aliphatics such as ethanol, isopropyl alcohol, n-butanol, and isobutanol (having 1 to 3 carbon atoms).
  • aromatic organic solvents such as xylene, toluene, and ethylbenzene
  • ketones such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone
  • aliphatics such as ethanol, isopropyl alcohol, n-butanol, and isobutanol (having 1 to 3 carbon atoms).
  • the content of the solvent (M) in the antifouling coating composition of the present invention is usually 5 to 80% by mass, preferably 10 to 70% by mass, when the total amount of the antifouling coating composition is 100% by mass. Moreover, you may add further at the time of coating according to workability
  • the antifouling coating composition of the present invention can be produced by appropriately using known methods.
  • the silyl methacrylate copolymer (A) and other components as necessary may be added to a stirring vessel at a time or in any order, and mixed by a known stirring and mixing means. it can.
  • the sagging inhibitor (J) amide wax (for example, Dispalon A630-20X)
  • Stirring and mixing means include high speed disperser, sand grind mill, basket mill, ball mill, three rolls, loss mixer, planetary mixer, universal Shinagawa stirrer and the like.
  • the antifouling coating film of the present invention comprises the solid content of the antifouling coating composition of the present invention.
  • the antifouling coating film of the present invention is formed from the antifouling coating composition of the present invention.
  • the antifouling coating composition contains a solvent (M)
  • the antifouling coating composition of the present invention applied on a substrate is used.
  • the soil coating composition can be formed by, for example, natural drying or drying using a drying means such as a heater (that is, removing the solvent (M)).
  • the antifouling substrate of the present invention comprises at least a substrate and the antifouling coating film of the present invention formed on the surface of the substrate.
  • the coating composition applied to or impregnated on the base material is applied to or impregnated using a coating means such as air spray, airless spray, brush, roller, etc.
  • a coating means such as air spray, airless spray, brush, roller, etc.
  • it can be produced by natural drying (temperature of about room temperature) or drying using a drying means such as a heater to form an antifouling coating on the substrate.
  • the antifouling substrate of the present invention forms an antifouling coating film on the surface of the temporary substrate with the antifouling coating composition of the present invention, and the antifouling coating film is peeled off from the temporary substrate for antifouling. It can also be manufactured by sticking it to the substrate. At this time, an antifouling coating film may be affixed on the substrate via an adhesive layer.
  • the base material is not particularly limited, but is preferably a base material that comes into contact with seawater or fresh water.
  • water supply / drain ports of various power plants thermal power, nuclear power
  • gulf roads gulf roads
  • submarine tunnels harbors Equipment or underwater structures
  • Equipment or underwater structures such as sludge diffusion prevention membranes used in various marine or river civil engineering works such as canals or waterways, ship outer plates (especially from the draft section of the ship to the bottom of the ship), fishing materials (ropes, fish nets, etc.) , Floats or buoys).
  • Examples of the material of these base materials include steel, aluminum, wood, FRP, etc. for ship outer plates, natural or synthetic fibers for fish nets, etc., and synthetic resin for floats, buoys, etc. As long as it is a base material that is in water and requires antifouling properties, the material is not particularly limited.
  • the surface of these base materials is usually the surface of the primer-treated base material after the primer such as a rust preventive paint is primed on the surface of the steel base material as described above.
  • the antifouling paint composition (antifouling paint) of the present invention is applied once or a plurality of times, and the antifouling paint composition applied or impregnated (particularly when the substrate is a fish net or the like) is dried.
  • antifouling coating When antifouling coating is formed, it has excellent properties (antifouling properties, especially static antifouling properties) that prevent the attachment of aquatic organisms such as blue sea bream, barnacles, blueberrys, cell plastics, oysters, and chrysanthemum bean.
  • the antifouling component eg, the copper pyrithione (B) and the optional inorganic copper compound (E) contained in the antifouling coating film can be gradually released over a long period of time.
  • the base material is a ship outer plate (particularly its bottom), an underwater structure or the like (usually, the base material surface may be primed or may have a layer formed from various paints. ))
  • the antifouling coating composition is applied to the surface of the base material a plurality of times (thick coating: dry film thickness of about 100 to 600 ⁇ m). It exhibits a good balance of flexibility and excellent crack resistance.
  • the surface of the antifouling coating composition of the present invention may be directly applied or impregnated on the surface.
  • the base material is a steel sheet dough
  • a base material such as a rust preventive agent or a primer
  • the antifouling coating composition of the present invention may be applied to the surface.
  • the thickness of the antifouling coating film of the present invention formed by one coating operation is not particularly limited, but is about 30 to 250 ⁇ m, for example, when the substrate is a ship or an underwater structure.
  • the underwater structure having the antifouling coating film of the present invention can maintain the function of the underwater structure for a long period because it can prevent adhesion of aquatic organisms over a long period of time.
  • the fish net having the antifouling coating film of the present invention is less likely to cause environmental pollution, and can prevent clogging of the net because it can prevent adhesion of aquatic organisms.
  • Solid content (%) X 2 / X 1 ⁇ 100
  • Viscosity of copolymer solution The viscosity (unit: mPa ⁇ s) of the copolymer solution at a liquid temperature of 25 ° C. was measured using an E-type viscometer (TV-25 manufactured by Toki Sangyo Co., Ltd.).
  • Viscosity initial viscosity (poise)
  • Viscosity at 25 ° C. of each coating composition immediately after (within 1 day) prepared in Examples and Comparative Examples is B type based on JIS Z 8803.
  • a viscometer VISCOMETER TVB-10M, SPINDLE No. M4, CORD No. 23 (manufactured by Toki Sangyo Co., Ltd.)
  • the measurement was performed at a liquid temperature of 25 ° C. and a rotation speed of 60 rpm.
  • each coating composition is stored in a 60 ° C. incubator, and the viscosity at 25 ° C. (viscosity after storage) of each coating composition is changed every other week according to JIS Z 8803.
  • Coating film accelerated deterioration test evaluation of coating film appearance
  • an epoxy paint epoxy AC paint, trade name “Banno 500”, manufactured by China Paint Co., Ltd.
  • a vinyl binder paint trade name “Sylvax SQ-K”, manufactured by China Paint Co., Ltd.
  • a test plate was prepared by coating so that the dry film thickness was 40 ⁇ m.
  • each coating composition of the above Examples and Comparative Examples was applied using an applicator so that the dry film thickness was 150 ⁇ m.
  • the film was dried at 23 ° C. for 1 day to form an antifouling coating, and the coating composition was applied to the surface of the antifouling coating to a dry film thickness of 150 ⁇ m.
  • An antifouling coating film was formed by drying for a day to prepare a test plate with an antifouling coating film.
  • This test plate with an antifouling coating film was immersed in artificial seawater at 50 ° C., and the appearance of the coating film was investigated based on the following evaluation criteria one month after the start of immersion.
  • each antifouling paint composition of the following Examples and Comparative Examples is dried to 150 ⁇ m using an applicator.
  • the film was dried at 23 ° C. for 1 day to form an antifouling coating film, and the antifouling coating composition was further applied to the antifouling coating film surface so that the dry film thickness was 150 ⁇ m.
  • it was dried at 23 ° C. for 7 days to form an antifouling coating film, thereby preparing a test plate with the antifouling coating film.
  • This test plate with antifouling coating is exposed from seawater as an exposed part in Nagasaki Bay, Nagasaki Prefecture, and exposed from seawater as an exposed part. It was set as the immersion state which imitated.
  • the area of the part where the aquatic organisms adhere to the antifouling coating film when the total area of the antifouling coating film in the seawater constantly submerged part of the test plate is 100% every month from the start of immersion (Also referred to as “adhesion area”.)
  • the aquatic organism adhesion area at the seawater submerged part and 50 mm at the shore was measured, and the antifouling property was evaluated based on the following evaluation criteria. [Evaluation criteria] 0: The adhesion area is 0%.
  • the adhesion area exceeds 0% and is less than 10%.
  • the adhesion area is 10% or more and less than 20%.
  • the adhesion area is 20% or more and less than 30%.
  • the adhesion area is 30% or more and less than 40%.
  • the adhesion area is 40% or more and less than 50%.
  • Adhesion area is 50% or more and 100% or less.
  • TIPSSMA triisopropylsilyl methacrylate
  • MEA 2-methoxyethyl acrylate
  • MMA methyl methacrylate
  • AIBN isobutyronitrile
  • TIPSMA triisopropylsilyl methacrylate
  • TIPSA triisopropylsilyl acrylate
  • MEA 2-methoxyethyl acrylate
  • MEMA 2-methoxyethyl methacrylate
  • BA n-butyl acrylate
  • Example 1 ⁇ Preparation of antifouling paint composition> In a plastic container, 13.2 parts by mass of xylene as a solvent, Solvesso No. 100 (aromatic hydrocarbon solvent, manufactured by ExxonMobil) 2.5 parts by weight, 4.8 parts by weight of gum rosin, 1 part by weight of ethyl silicate 28, and 16 parts by weight of copolymer solution A1 was mixed using a paint shaker until uniformly dispersed or dissolved.
  • Solvesso No. 100 aromatic hydrocarbon solvent, manufactured by ExxonMobil
  • talc FC-1 5 parts by mass of talc FC-1, 5 parts by mass of zinc oxide (Zinc Hua 3), 45 parts by mass of cuprous oxide NC301, 0.5 parts by mass of Novo Palm Red F5RK, titanium white R-5N 2 parts by mass, 1 part by mass of copper omadin (copper pyrithione) and 2 parts by mass of Disparon 4200-20X were added and stirred for 1 hour using a paint shaker to disperse these components.
  • Coating composition AA1 was obtained. In addition, it shows in Table 4 about the manufacturer etc. of the said various additives. Various characteristics of the obtained coating composition AA1 were evaluated. The results are shown in Table 7.
  • Examples 2 to 15 and Comparative Examples 1 to 9 A coating composition was prepared and various characteristics were evaluated in the same manner as in Example 1 except that the types and amounts of the blending components were changed as shown in Tables 5 to 6. The results are shown in Tables 7-8.
  • the coating compositions AA2 to AA15 and the coating compositions BB1 to BB9 shown in Tables 5 to 8 represent the coating compositions obtained in Examples 2 to 15 and Comparative Examples 1 to 9, respectively.
  • Example 1 it was revealed that any of the coating compositions formed a coating film having excellent long-term storage stability and excellent antifouling properties and long-term durability.
  • Comparative Example 1 using the copolymer solution B1 containing a copolymer using 2-methoxyethyl methacrylate instead of 2-methoxyethyl acrylate, copper pyrithione, zinc oxide, and a rosin compound were used.
  • Comparative Example 2 using the copolymer solution B2 containing a copolymer using triisopropylsilyl acrylate instead of triisopropylsilyl methacrylate was a case where copper pyrithione, zinc oxide, and rosin compound were used.
  • the storage stability was poor and a viscosity increase (10 poise) was observed after one week, and the viscosity increased by 30 poise after two weeks.
  • sufficient long-term durability was not obtained (the evaluation point of the amount of cracks was 1 after 2 months, and the evaluation point was 3 after 4 months).
  • the antifouling property was also inferior (aquatic organisms adhered to the constantly submerged part and waterside when immersed for 3 months, the adhesion area was 10% or more and less than 20%, and always immersed when immersed for 6 months.
  • the attachment area of aquatic organisms in the water part was 30% or more and less than 40%.
  • Comparative Example 3 using a copolymer solution B3 containing a copolymer having a triisopropylsilyl methacrylate content of 40% by mass which is less than the range of the present application (45 to 75% by mass), copper pyrithione ( B) Even if zinc oxide (C) and rosin compound (D) are used, they are particularly inferior in antifouling properties (aquatic organisms adhere to the submerged part and at the water's edge when immersed for 2 months) The area is 10% or more and less than 20%, and the immersion area of the aquatic organisms is always 40% or more and less than 50% when immersed for 6 months.) In addition, sufficient long-term durability is also obtained.
  • a silyl methacrylate copolymer (A) containing 45 to 75% by mass of the structural unit (a1), 15 to 35% by mass of the structural unit (a2), and 0 to 35% by mass of the structural unit (a3) is contained. Even in this case, Comparative Example 5 which does not contain copper pyrithione (B) is particularly inferior in antifouling property (aquatic organisms are always attached to the submerged part and at the waterside when immersed for 2 months, and the adhesion area is 10% or more.
  • Comparative Example 6 which does not contain zinc oxide (C)
  • sufficient antifouling properties cannot be obtained (aquatic organisms adhere to the water when immersed for 2 months, and the adhesion area is 10% to 20%.
  • the aquatic organism adhesion area in the constantly submerged area after immersion for 6 months was 20% or more and less than 30%, and the aquatic organism adhesion area at the waterside was 30% or more and less than 40%.) Long-term durability was also not obtained (the evaluation point of the amount of cracks was 1 after 3 months, and the evaluation point was 2 after 4 months).
  • a silyl methacrylate copolymer (A) containing 45 to 75% by mass of the structural unit (a1), 15 to 35% by mass of the structural unit (a2), and 0 to 35% by mass of the structural unit (a3) is contained. Even in this case, in Comparative Example 7 containing no rosin compound (D), the antifouling property is particularly inferior (aquatic organisms adhere to the constantly submerged part and the waterside when immersed for one month, and the adhesion area is 10% or more.
  • the adhesion area is 20% or more and less than 30%, and the adhesion area of aquatic organisms is always 30% or more and less than 40% when immersed for 6 months.) And sufficient long-term durability (Evaluation point of cracking amount was 2 and 3 months later, and the evaluation score was 3 after 3 months).
  • the silyl methacrylate containing 45 to 75% by mass of the structural unit (a1), 15 to 35% by mass of the structural unit (a2), and 0 to 35% by mass of the structural unit (a3).

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  • Organic Chemistry (AREA)
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Abstract

La présente invention décrit une composition de revêtement antisalissure ayant une stabilité exceptionnelle au stockage à long terme ainsi que des propriétés antisalissures et une durabilité à long terme exceptionnelles du film de revêtement résultant. En outre, le but de la présente invention est de préparer un film de revêtement antisalissure obtenu à partir de la composition de revêtement antisalissure, un substrat antisalissure comprenant le film de revêtement antisalissure, et un procédé pour le produire. Ladite composition de revêtement antisalissure comprend : un copolymère méthacrylate de silyle (A) comprenant de 45 à 75 % en masse de motifs structurels (a1) dérivés de méthacrylate de triisopropylsilyle, de 15 à 35 % en masse de motifs structurels (a2) dérivés d'acrylate de 2-méthoxyéthyle, et de 0 à 35 % en masse de motifs structurels (a3) dérivés d'un autre monomère éthyléniquement insaturé ; de la pyrithione de cuivre (B) ; de l'oxyde de zinc (C) ; et un composé de colophane (D).
PCT/JP2017/011636 2016-03-25 2017-03-23 Composition de revêtement antisalissure, film de revêtement antisalissure, substrat antisalissure et leur procédé de production WO2017164283A1 (fr)

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Cited By (5)

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JP2018109146A (ja) * 2016-11-11 2018-07-12 ヨトゥン アーエス 防汚組成物
WO2019221047A1 (fr) * 2018-05-18 2019-11-21 日東化成株式会社 Composition de matériau de revêtement antisalissure
JP6647655B1 (ja) * 2018-04-12 2020-02-14 日東化成株式会社 防汚塗料組成物
EP3831898A4 (fr) * 2018-07-27 2022-04-06 Chugoku Marine Paints, Ltd. Composition de peinture antisalissure, revêtement antisalissure, substrat avec revêtement antisalissure, procédé de production associé et procédé de réparation
WO2022202905A1 (fr) 2021-03-25 2022-09-29 日信化学工業株式会社 Émulsion de résine acrylique, son procédé de production et composition de revêtement

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JP2002256176A (ja) * 2001-02-27 2002-09-11 Chugoku Marine Paints Ltd 複合防汚塗膜、該塗膜で被覆された船舶、水中構造物、漁具または漁網および防汚方法
JP2010144106A (ja) * 2008-12-19 2010-07-01 Nitto Kasei Co Ltd 防汚塗料組成物、該組成物を用いて形成される防汚塗膜、該塗膜を表面に有する塗装物、及び該塗膜を形成する防汚処理方法
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018109146A (ja) * 2016-11-11 2018-07-12 ヨトゥン アーエス 防汚組成物
JP7178167B2 (ja) 2016-11-11 2022-11-25 ヨトゥン アーエス 防汚組成物
JP6647655B1 (ja) * 2018-04-12 2020-02-14 日東化成株式会社 防汚塗料組成物
WO2019221047A1 (fr) * 2018-05-18 2019-11-21 日東化成株式会社 Composition de matériau de revêtement antisalissure
JP6624666B1 (ja) * 2018-05-18 2019-12-25 日東化成株式会社 防汚塗料組成物
EP3831898A4 (fr) * 2018-07-27 2022-04-06 Chugoku Marine Paints, Ltd. Composition de peinture antisalissure, revêtement antisalissure, substrat avec revêtement antisalissure, procédé de production associé et procédé de réparation
WO2022202905A1 (fr) 2021-03-25 2022-09-29 日信化学工業株式会社 Émulsion de résine acrylique, son procédé de production et composition de revêtement
KR20230159552A (ko) 2021-03-25 2023-11-21 닛신 가가꾸 고교 가부시끼가이샤 아크릴 수지 에멀션 및 그의 제조 방법 그리고 도료 조성물

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